'Vitamins are needed in very small quantities by our body as compared to other components, yet they are an important part of a balanced diet.' Explain the statement.

Vitamins are needed in very small quantities by our body but are an important part of the balanced diet because they help in protecting our body against diseases and are necessary for good eyesight (Vitamin A), growth (Vitamin B), keeping teeth, gums and joints healthy (Vitamin C) and for healthy growth of bones and teeth (Vitamin D).